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BuildCircuit is an online store for selling electronics kits and components related to Arduino, Raspberry Pi, etc. We operate from Sydney, Australia.

We design and sell basic electronic kits and Arduino modules for all electronics enthusiasts.


Infrared based Obstacle Avoidance Sensor Module

AU $4.95
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Current Stock:
Out of Stock
Out of Stock

This product is shipped from Sydney, Australia. Worldwide shipping available- we ship to USA, Canada, New Zealand, UK, EU and Non-EU countries.

This obstacle sensor module works with LM393. It has a pair of infrared transmitting and receiving sensors. The infrared LED emits IR signals a certain frequency and when an obstacle appears on the line of infrared light, it is reflected back by the obstacle which is sensed by the photodiode (which works as an infrared sensor).

The detection sensitivity and distance can be adjusted with the potentiometer on the module. The distance range is 2-30cm which means that the sensor module can detect obstacles or object that are within the range of 2-30cm.

Moving the potentiometer in clockwise direction increases the detection distance and moving in the counter-clockwise direction decreases the detection distance.

NOTE: This module is suitable for educational purpose only, not suitable for industrial use and not suitable for end user products. If you use it for any industrial use and if it fails, we are not responsible for it. We won't replace or make refunds for used parts.

Operating voltage: 3.3V-5V


  • Obstacle detection robots
  • Range finder 

The sensor module output pin OUT can be directly connected to the microcontroller. It can also drive a 5V relay directly.


VCC - VCC or 5V


OUT - Connect to LED or Relay or any digital pin of Arduino

Circuit board size: 3.2CM*1.4CM


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Information about shipping

BuildCircuit is a trustworthy online store established in Sydney, Australia. We have been maintaining our quick shipping service since we started the store in Turku, Finland(in 2012).

Shipping information for international customers

We ship our products to more than 45 countries using Australia Post. Our regular customers are from the USA, Canada and Europe. We are currently using four different shipping methods to ship the orders to international destinations. We request you to select 'Standard Post' or 'Registered Post' while checking out so that you can receive your package quickly.

We usually ship your orders within 1-2 days. Small orders are usually processed and shipped on the same day.

Shipping information for Australian customers

All the orders from Australia are shipped on the next day at 9.00AM. Orders with Express Australia Post are also shipped on the next day if your order is placed before 1.00PM. We provide tracking code for Standard, Registered and Express Post orders only.

Australia Post has never lost any package since we started our business in Ausralia. So, we request you all to buy with confidence.

Are we reliable ? How to know we are genuine sellers ? How is your payment safe ?

1. If you make a payment via Paypal and if we don't ship, you can open a case on Paypal and ask for refund. Paypal will be on your side and they will make full refund.

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4. We have a popular blog www.buildcircuit.com and people from all over the world read our posts. We are seriously in the business, therefore, we WILL ship your orders

For International Customers: For registered and express post orders, you will receive a notification on your email after the package is landed in your country. Examples given below:


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